| Syne Accessory Dg Co., Limited | Private company limited by shares | Live |
| Synear Hong Kong (One) Company Limited | | Live |
| Synear Hong Kong (Two) Company Limited | | Live |
| Synecobasic Limited | | Live |
| Synecobright Limited | | Live |
| Synecofield Limited | | Live |
| Synecofine Limited | | Live |
| Synecofriend Limited | | Live |
| Synecogood Limited | | Live |
| Synect Limited | | Live |
| SYN-ED LIMITED | Private company limited by shares | Dissolved |
| SYNEEDS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SYNEGY RESOURCES (INT'L) CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SYNEKTRON (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SYNELEC LIMITED | Private company limited by shares | Dissolved |
| SYNELEMENT LIMITED | Private company limited by shares | Live |
| syn.energy Limited | | Live |
| SYNEPARTNER PHARMCHEM LIMITED | Private company limited by shares | Dissolved |
| Syner Energy Limited | | Live |
| SYNER WEB TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| Syner Vertech Limited | Private company limited by shares | Live |
| SYNERACT INTERNATIONAL TRADE PROMOTION CENTRE LIMITED | Private company limited by shares | Dissolved |
| SYNERBAHN TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SYNERBRIGHT LIMITED | Company limited by guarantee | Live |
| Synerbyte Limited | Private company limited by shares | Live |
| SYNERCE TECHNOLOGIES (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| SYNERCO LIMITED | Private company limited by shares | Dissolved |
| SYNERCOM LIMITED | Private company limited by shares | Dissolved |
| SYNERCON TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Synerex Limited | | Live |
| SYNER-G LIMITED | Private company limited by shares | Live |
| Synergem Solutions Limited | Private company limited by shares | Dissolved |
| SYNERGENCE COMPANY LIMITED | Private company limited by shares | Live |
| CHY Synergetic LIMITED | Private company limited by shares | Live |
| SYNERGETIC ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SYNERGETIC GROUP LIMITED | Private company limited by shares | Live |
| Synergetic Innovation Limited | Private company limited by shares | Live |
| SYNERGETIC NETWORKS LIMITED | Private company limited by shares | Live |
| SYNERGEX BRAND MANAGEMENT (HK) LIMITED | Private company limited by shares | Dissolved |
| SynergHealth Limited | Private company limited by shares | Dissolved |
| SYNERGI LIMITED | Private company limited by shares | Live |
| Synergi Asia Limited | Private company limited by shares | Live |
| Synergi Consulting (Hong Kong) Limited | Private company limited by shares | Live |
| SYNERGI HOLDINGS LIMITED | Private company limited by shares | Live |
| Synergia Capital Limited | Private company limited by shares | Live |
| SYNERGICORP LIMITED | Private company limited by shares | Dissolved |
| SynergicSource Limited | Private company limited by shares | Live |
| Synergie Company Limited | Private company limited by shares | Live |
| SYNERGIE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| SYNERGIE TECHNO-VISION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| EURASIE SYNERGIE (EAS) HONG KONG LIMITED | Private company limited by shares | Live |
| SYNERGIE INVESTMENTS (GROUP) LIMITED | Private company limited by shares | Live |
| SYNERGIE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SYNERGIE TRANSLATION SERVICES LIMITED | Private company limited by shares | Dissolved |
| SYNERGIE TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| SYNERGIE ACCLAIM TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| SYNERGIE TRANSLATION LIMITED | Private company limited by shares | Dissolved |
| JV SYNERGIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| TPS Synergies Limited | Private company limited by shares | Live |
| SYNERGIES LIMITED | Private company limited by shares | Live |
| CMA Synergies Limited | | Live |
| LC Synergies Limited | | Live |
| BT ASIA SYNERGIES LIMITED | Private company limited by shares | Dissolved |
| ASIAN SYNERGIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUSINESS SYNERGIES LIMITED | Private company limited by shares | Dissolved |
| GlobalChem Synergies Limited | Private company limited by shares | Live |
| Synergies Group Limited | Private company limited by shares | Live |
| SYNERGIES HONG KONG LIMITED | Private company limited by shares | Live |
| AQ Synergies (Hong Kong) Limited | | Live |
| CRM Synergies Hong Kong Company Limited | | Live |
| Synergies Intelligent Systems Limited | | Live |
| New Synergies Investments Company Limited | Private company limited by shares | Live |
| Synergies & Partnership Limited | Private company limited by shares | Dissolved |
| SYNERGIES SHANGHAI HOLDING LIMITED | Private company limited by shares | Live |
| SynergiesWorld Company Limited | Private company limited by shares | Live Commenced dormancy on 01-Aug-2014 |
| Synergis Limited | Private company limited by shares | Live |
| Synergis Capital Limited | Private company limited by shares | Live |
| SYNERGISTER CYBER LIMITED | Private company limited by shares | Live |
| SYNERGISTIC ALLIANCE LIMITED | Private company limited by shares | Dissolved |
| SYNERGISTIC MARKETING & CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| SYNERGISTIC HEALTHCARE DISTRIBUTION (HK) COMPANY LIMITED | Private company limited by shares | Live |
| SYNERGISTIC SOLUTIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| SYNERGISTIC INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ONE SYNERGISTIC INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SYNERGISTIC INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Synergistic Solution Limited | | Live |
| Synergistic Traffic Limited | Private company limited by shares | Live |
| SYNERGISTICS LIMITED | Private company limited by shares | Live |
| SYNERGISTICS RESEARCH (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SYNERGISTICS INTERNATIONAL, LIMITED | Private company limited by shares | Dissolved |
| SYNERGISTIK RESOURCES COMPANY LIMITED | Private company limited by shares | Live |
| Synergists Limited | Private company limited by shares | Live |
| Synergize Limited | Private company limited by shares | Dissolved |
| Synergizer Limited | Private company limited by shares | Live |
| Synergizes Limited | Private company limited by shares | Live |
| Synerglobal Limited | Private company limited by shares | Live |
| Synergon Investments Limited | Private company limited by shares | Live |
| Synergonomy Holding Limited | Private company limited by shares | Live |
| Synergos Education Limited | Private company limited by shares | Live |
| SYNERGOS (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |